Printing-press.



No. 884,128. l PATENTED APR. '7, 1908 H. I'. BECHMAN.

PRINTING PRESS.

A APPLICATION FILED JUNE 19, 1907.

Z SHEETS-SHEET 2.

Hemyl? Beckman annu/Moz vUNITED sTATEs PATENT onirica.

' HENRY F. BECHMAN, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO DUPLEX PRINTING PRESS COMPANY, OF

BATTLE CREEK, MICHIGAN, A CORPORATION OF MICHIGAN.

Speccation of Letters Patent. Application iled June 19, 1907. Serial No. 379,722.

Patented Apn 7, i908.

To all whom 'it/may concer/rt:

Be it known that I, HENRY F. BECHMAN, of Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Printing- Presses" and I hereby declare that the following is a full, clear, and exact description thereof, reference being had .to the accompanying drawings, which form `.part of this specification.

The resent invention relates to improvements 1n Hat bed web perfecting printing presses, and aims to provide nove means whereby with a a plurality of rinting couples the web can be properly fed t rough an desired number of the couples, thereby-ena` lin the ress to'be `economically employed for' oth; eavy and light work.

The invention further contemplates the provision of a compensating mechanism operatin to form a plurality of loops in the web, t e number ofloops being variable according to the manner in which-the web is threaded throughthe rollers and depending `up1 l n the number of printing couples in use. T 's construction has the advantage of enabling proper compensation .to be made for the various number of couples employed withoutnecessitating the adjustment of the cams or mechanical portion of the compensating device. v

Still another feature of the inventionresides in the provision 'of gearing which can be readil adjusted to feed the web at the require speed according to the number of printing couples in use.

The invention will be fully understood from the accom anyin drawings' and summarized in the 4c aims ollowing the description of the machine illustrated in the drawin s.

n said drawings- Figure 1 is a diagrammatical longitudinal sectional elevation of the machine showing the arrangement ofthe printing, feeding, looping and delivering mechanisms, and the mode of threading the web through the press when both pairs of printing couples are being employed.' Fig. 2 .1s asimilar view showing the mode of threading the web through the ress when onl one air of the printing coup es is being uti ig. 3 is an enlarged detail view of the changeable gearing for varying the speed of the wel` Fig. 4 is a detail plan viewvof 'such press of this type embodying.

'zed. i

' gearing. Y Fig. 5 is a detail end view, and Fi 6 a detail plan view of the cutting and colecting cylinders and their gearing.

Broadly speaking, the press comprises a plurality of printing couples of which the reference characters 10, 10b, 10c, and 10d, indicate the type beds, and 1k, 2k, 3k,.and 4k, the co-acting impression cylinders, feed rollers 2 and 3 designed to receive the web W from the roll W, a collectingand cutting roller 6", and acompound compensating device which vcan be employed in connection with a select,- ed number of printing couples, the said compensating device being lsimilar to that shown in my prior patent No. 805,620 granted NQ- vember 28, 1905.

The press shown in the drawings com'- prisestwo pair of printing couples, the type eds of each pair eing arranged one above the other in parallel planes, and the web W' can be either threaded through both air of the said couplesor through only a sing e pair. When the web passes through all the couples. as shown in Fig/1 the press Will" print an eight, twelve, or a sixteen page paper; Whjile when the web is only passed through a single pair of lthe printing couples as shown inFig.. 2l the ress will print either a two, four, six, or eig t page paper.

The compensatin device comprises the vertically reciprocatmg bar, 1 1a actuated in a Well known manner through the medium` of the lever 12a and cam groove in the Wheel 13b, the said Wheel being roperly geared to the drive shaft or operatedhnany other suitable manner. Carried by this reciprocating bar 11a are the lower set of looping roller-s 8 and '7a operating u on the web as it is fed to the printing coup es, and the up er set of looping rollers 3*? and 98L engaging t e web W 9,5 as 1t is delivered from the printing couples. Coperating wi h the lower set of movable looping rollers are stationary rollers or idlers 5 and 6, and cooperating-in a similar manner with the upper set of movable looping rollers are idlers 2EL and 21. It will be observed that one compensating loop can be formed in the web W for each pair of printing couples, and that the number of the oops actually formed depends upon the manner in which the web 105 is threaded through the rollers.

For the roper working of the press it is necessary t at the web be shifted or fed twice as fast when both pair of the Eprinting couples are in use as indicated in ig. 1 as when 110 into mesh with the gear wheel 3b accbrding to whether both pair of the printing couples'are being employed or only v'a single air. These. gears'are so proportioned that t e web W is shifted or fed twice as fast in the former instance as in thel latter. I l

As shown in Figs. 3 and 4, the gears 2d, 3d, are connected by aV sleeve A slidably keyed to the shalt A, while gears 3b, 30, are fixed on shaft B. The gears 2d, 3d, can be slid on shaft A, so as to bring gear 3d into mesh with gear 3b (as indicated in full lines Figs. 3 and 4) or shifted so as to bring gear 2d into mesh with gear 3C as indicated 1n dotted lines Fig; 4. Gears 2d, 3d, can be fastened in adjusted position by set screw A2.

Referring more specifically to Fig. 1, the web lW is drawn from the roll W, runs under the roller 1, -passes up and over the feed roll 2 and down and under feed roll 3, then extends .over the looping roller 8C, under the idler 5,

and.. over and. around the looping roller 7 a.

' From here the web is drawn around the idlers 6 and 7, passes under the impression cylinder 1k, is drawn over the idlers 8, 4 and 11, passes `under the impression cylinder Skfextends up and over the idler 12, i's drawn around the coaxing rollers 13 and 14 andthe idler 15,

vpasses under the impression cylinder dk, is

drawn over the idlers 16, 18 and 19, and passes under the impression cylinder 2k. The web then passes over the idlers 20 and 2i, down and around the looping roller 9E, up and over the idler 2, down and around the looping roller 3a, up'and over idler d and over upper delivery'roll 5a, and thence over to the cutting and collecting cylinder 6a. rlhis cylinder can be providedwithacollecting device so that two successive sheets can be collected on same, or the web maybe run direct through to the folder. The cylinder 6b is the male cutting cylinder while't)Et is the female cut# ting and collecting cylinder.

The cutting and collecting cylinders are shown more clearly in Figs. 5 and 6. .The shaft C of the collecting cylinder 6a, may have gears C', C2, fixed thereon. And shaft D of cylinder 6b has gears D', D2, slidably mounted thereon. when sheets are to be collected gears D, C may be brought into in'esh, and the cani C3 attached to gear C2. When not collecting, gears C2, D, can be put in mesh, and cam C3 fastened to the cylinder 6, Gears D', D2, can be fastened in adjust-` ed. position by set screw D3. The particular seems u construction of this collecting mechanism is not claimed herein.

Referrin to Fig. 2 the web W is drawn i 4, around the idler 10, up and around the idler 17, over the idlers l18 and 19,. under the impression cylinder 2k, and overthe/ idlers and around the looping roller 3a, around the` idler 4 roll 5, and finally reaches the cutting and collecting cylinder 6a. f- Y The travel of the impression cylinders is the same in both instances, the only difference being in the threadin feeding and compensating of the web. hen the press is used as indicated in Fig. 1 the web is fed twice'as fast as would be'required in Fig. 2 and two of the compensating loops are formed in the web, while in the latter instance but one compens'atin loop is formed. Now if an operator desire to run an eight page paper collected, he could run a four page width roll which web would cover oneup and f the cylinder and if he desired to run a 1 twelve pa e paper, a three-quarter width web .Woul' be used; and incase of sixteen pages, a full width web would be used which would cover four forms side by side as commonly used on' the uplex press.

`While only two pair of printing couples have been shown in the present instance it will -be readily understood that the invention could be readily extendedto include any desired number of printing couples. lt is also to be understood that slight minor changes can be made in the construction shown without in any manner departing from the spirit of the invention.

Having described my invention what claim as new and desire to secure by Letters Patent is: l

1. In a perfecting printing press, the combination of a plurality of pairs of printing couples each comprising a fiat stationary bed and reciprocating cylinder', means for feeding a web .to one or morepairs of the printing couples Vat a speed varied according to the number "of airs of couples between which the web is ed, and a compensating device adapted to act in conjunction with any selected number of the printing couples and feed of web, y

2. ln a erfecting printing press, the combination o a plurality of printing couples each.

comprising a flat stationary bed and a reciprocating cylinder, means for feeding a web to .a selected number of couples, means for regulating the speedv of the web feed according to and over upper delivery 20, 21 and 2a. The web then passes down the number of couples between -whichithe ders, the combination of a plurality of printing couples, means for feedlng a web to a selected number of the couples at aspeed varied according to the number of. pairs of couples between which the web is led, and a ,compensating device comprising means for forming a plurality of loops in the web, the number of loops being variable` according to 4 the number of couples in use and depending upon the 'speed of the web feed and the method of threading the web through the compensating device.

A4:. In a perfecting printing press having fiat stationary beds and reciprocating cylinders, the combination of a plurality of printing couples, means for yfeeding a web to a selected number of the couples at a speed va-v ried according to the number of pairs of couples between which the web is led, and a compensating device adapted to act in conjunction with any selected number of the printing couples and in accordance with the speed of the web feed,A and comprising a plurality of movable looping rollers and intermediate stationary rollers 4cooperating therewith. u

5. In a perfecting printing press having fiat stationary beds and reciprocating cylinders, the combination of a plurality of 'printing couples, means for' feeding a'web to a selected number of the couples, means for regulating the feed according to the number of couples in use, and a compensating device adapted to act in conjunction with any selectednumber of the couples and comprising y threading the web through the compensati a plurality of movable looping rollers and in- 45 termediate stationary rollers coperating therewith, the number of loops formed being variable and depending upon the manner of ing device.

6. In a perfecting printing press having fiat stationary beds and reciprocating cylin-` ders, the combination of a plurality or printing couples, a web feed and delivery mechanism, a drive shaft, a plurality of gear wheels carried by the drive shaft, a second shaft interposed between the drive shaft and the feed and delivery mechanism, gear wheels carried by the second shaft and cooperating with the rst mentioned gear wheels to regul late the speed of the web, means for feeding the webl to a selected number of the couples, and a compensating device ada ted to act in conjunction with any selecte number of the said couples.

7.. In a perfecting printing press having flat stationary beds and reciprocating cylinders, thev combination of a plurality of printing couples, means for threading a web through a selected number of the couples, means for feeding the web, means for regulating the feeding of the web, a cutting and collecting cylinder receiving the web, and a compensating device `comprising means vfor forming a plurality of loops, the number of loops being variable according to the number of printing couples in use and depending upon the manner of threading the web.

8. In a perfecting printing press having fiat stationary beds and reciprocating cylinders, the combination of a plurality of pairs of printing couples, each couple comprising a type bed and a coperating impression cylinder and the type beds of each pair of couples being arranged one above the other in approXimately parallel planes, means for threadinga web through any selected number of pairs of the couples, means for regulating the feeding'of'the web, and a compensating device comprising means for forming a plu` rality of loops in the web, the number of loops being variable according to the number of HENRY F. BECHMAN.

Witnesses I. K. STONE, F.' W. DUNNING. 

